The experiment shows that proper amounts of exercise, if ___ regularly, can improve our health.
| A．being carried out |
| B．carrying out |
| C．carried out |
| D．to carry out |
It sounds like something is wrong with the car’s engine. ___ we’d better take it to the garage immediately.
| A．Otherwise |
| B．If not |
| C．But for that |
| D．If so |
Jane won’t join us for dinner tonight and ___.
| A．neither won’t Tom |
| B．Tom won’t either |
| C．Tom will too |
| D．so will Tom |
When deeply absorbed in work, ___he often was, he would forget all about eating or sleeping.
| A．that |
| B．which |
| C．where |
| D．when |
He missed ___ gold in the high jump, but will get ___ second chance in the long jump.
| A．the; the |
| B．不填;A |
| C．the; a |
| D．a;不填 |